Freebase(0.00 / 0 votes)Rate this definition: Serval. The serval is a medium-sized African wild cat. DNA studies have shown that the serval is closely related to the African golden cat and the caracal. Chambers 20th Century Dictionary (0.00 / 0 votes) Rate this definition:
Word forms: plural harrows. countable noun. A harrow is a piece of farm equipment consisting of a row of blades fixed to a heavy frame. When it is pulled over ploughed land, the blades break up large lumps of soil.
Finally, in the Middle Ages, somebody invented the harrow. A harrow is a wooden board that attaches to a plow, and helps the plow really turn over the dirt instead of just making a groove in it. Then if you harrow the field crossways after you drop the seeds, you don't have to cover the seeds up one by one anymore.